Pith Number

pith:W7GQCPMU

pith:2018:W7GQCPMUOK752GOM7S4ZNLUSJH

not attested not anchored not stored refs pending

A note on orderability and Dehn filling

Christopher Herald, Xingru Zhang

arxiv:1807.00742 v1 · 2018-07-02 · math.GT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W7GQCPMUOK752GOM7S4ZNLUSJH}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:11:51.569174Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7cd013d9472bfdd19ccfcb996ae9249da12fe5339165e6cd46845ece7b930ae

Aliases

arxiv: 1807.00742 · arxiv_version: 1807.00742v1 · doi: 10.48550/arxiv.1807.00742 · pith_short_12: W7GQCPMUOK75 · pith_short_16: W7GQCPMUOK752GOM · pith_short_8: W7GQCPMU

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/W7GQCPMUOK752GOM7S4ZNLUSJH \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: b7cd013d9472bfdd19ccfcb996ae9249da12fe5339165e6cd46845ece7b930ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "985cfa5aa03a27d7ee6866cb22e6308a075ff5c6578a4d0cc7cc3f1b576921a2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2018-07-02T15:29:19Z",
    "title_canon_sha256": "3bfa22ebd1d06d6ea27a6f63370aca9e39ff74a482820b85e115fdd27bd21068"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.00742",
    "kind": "arxiv",
    "version": 1
  }
}